Suzaku Observation : 809080010

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Fits Header

TELESCOP= 'SUZAKU  '           / Telescope (mission) name
OBS_ID  = '809080010'          / Observation identification string
OBSERVER= 'SCOTT WILLAIM RANDALL' / Principal Investigator
OBJECT  = 'ABELL 98-SOUTH'     / Name of observed object
OBS_REM = '        '           / remark on observation
RA_OBJ  =              11.6727 / planned target R.A.(deg)
DEC_OBJ =              20.2794 / planned target DEC.(deg)
RA_NOM  = 1.167660000000000E+01 / Right Ascension of target (deci. deg)
DEC_NOM = 2.027500000000000E+01 / Declination of target (deci. deg)
PA_NOM  =             251.4904 / nominal position angle from north to DETY(deg)
MEAN_EA1=      11.676613110115 / mean of the 1st ZYZ-Euler angle (deg)
MEAN_EA2=      69.724953764025 / mean of the 2nd ZYZ-Euler angle (deg)
MEAN_EA3=     198.509643052573 / mean of the 3rd ZYZ-Euler angle (deg)
DATE-OBS= '2014-12-20T12:57:51' / Start date of observations
DATE-END= '2014-12-21T22:00:13' / End date of observations
TSTART  = 4.723961950000000E+08 / time start
TSTOP   = 4.725124250000000E+08 / time stop
TELAPSE = 1.162300000000000E+05 / elapsed time
ONTIME  = 4.911039742702246E+04 / On-source time
EXPOSURE= 4.911039742702246E+04 / Exposure time
MJD-OBS = 5.701154929611111E+04 / MJD of data start time
FILIN001= 'ae809080010xi0_0_3x3n066l_cl.evt.gz' / Input file name
SEQPNUM =                    3 / Number of times this dataset processed
PROCVER = '3.0.22.44'          / Processing script version
MK1STVER= 'mk1stfits20120530'  / Version of mk1stfits used
SOFTVER = 'Hea_08Feb2016_V6.18_Suzaku_14Nov2013_V22' / Version of HEADAS used
CALDBVER= 'hxd20110913_xis20160607_xrt20110630_xrs20060410' / Version of CALDB u
FILIN002= 'ae809080010xi0_0_5x5n066l_cl.evt.gz' / Input file name
FILIN003= 'ae809080010xi1_0_3x3n130b_cl.evt.gz' / Input file name
FILIN004= 'ae809080010xi1_0_5x5n130b_cl.evt.gz' / Input file name
FILIN005= 'ae809080010xi3_0_3x3n066a_cl.evt.gz' / Input file name
FILIN006= 'ae809080010xi3_0_5x5n066a_cl.evt.gz' / Input file name
COMMENT -------------------------
COMMENT BITPIX compressed from 32 to 8.
COMMENT Pixel values greater than 255 was set to 255.
COMMENT This file was made for JUDO-Suzaku.
COMMENT -------------------------
COMMENT   FITS (Flexible Image Transport System) format is defined in 'Astronomy

Abstract:

We propose to observe the outskirts of the strongly merging cluster Abell 98 both along and perpendicular to the large scale structure filament implied by the orientation of its three merging subclusters. This is the only remaining one of the four bright, strongly merging "double" clusters originally identified from Einstein observations that has not been observed with Suzaku. A comparison of the extended atmosphere in the filament and off-filament pointings will allow us to test for the presence of unresolved gas clumps, which should be more abundant along the filament, invoked to explain anomalously high (above cosmic) baryon fractions observed in some other clusters. If this "unresolved clumps" hypothesis is correct, then we should find higher baryon fractions along the filament.